CERN Accelerating science

R&D and Studies

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Studies on the nonlinear beam dynamics for future particle colliders / Hofer, Michael (TU Vienna)
Particle colliders serve as unique tools to study constituents of matter and understand their interactions. For studying rare events, the collision energy of the particle beam is key in determining which events can be observed, while the achievable collision rate gives the number of observable events during the operation time of the machine. [...]
CERN-THESIS-2023-161.- 162 p. Fulltext: PDF; External link: Approve this document (restricted)

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Mechanical model for the FCC-ee interaction region / Boscolo, Manuela (Frascati) ; Palla, Fabrizio (Pisa U.) ; Bosi, Filippo (Pisa U.) ; Fransesini, Francesco (Frascati) ; Lauciani, Stefano (Frascati)
The Future Circular Collider FCC-ee aims at unprecedented luminosities to be obtained with the crab-waist collision scheme. In this paper we describe the mechanical model of the interaction region layout including its assembly procedure. [...]
2023 - 18 p. - Published in : EPJ Tech. Instrum. 10 (2023) 16 Fulltext: PDF;

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Multi-port modular multilevel converters for the supply of the future circular collider two-stage klystrons / Colmenero, M (CERN) ; Vidal-Albalate, R (Jaume I U., Castellon) ; Blanquez, F Rafael (CERN) ; Blasco-Gimenez, R (Valencia, Polytechnic U.)
The new generation of high-efficiency klystrons for future particle colliders requires two high-voltage, series-connected power supplies. As an alternative to conventional klystron power converters, the use of Multi-port Modular Multilevel Converters with three DC output terminals is proposed. [...]
2023 - 7 p. - Published in : 10.1049/icp.2023.1405
In : 19th International Conference on AC and DC Power Transmission (ACDC 2023), Glasgow, UK, 1 - 3 Mar 2023, pp.334-340

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Innovative applications of strong crystalline field effects to particle accelerators and detectors / Soldani, Mattia
It is well known that the electromagnetic interactions between high-energy particles and solid matter undergo substantial modifications when the latter is crystalline and its lattice axes are almost parallel to the incident beam direction [...]
CERN-THESIS-2023-093 -

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The Electron-Positron Future Circular Collider (FCC-ee) / Zimmermann, Frank (CERN) ; Benedikt, Michael (CERN) ; Oide, Katsunobu (Geneva U. ; KEK, Tsukuba) ; Raubenheimer, Tor (SLAC)
The Future Circular electron-positron Collider (FCC-ee) is aimed at studying the Z and W bosons, the Higgs, and top quark with extremely high luminosity and good energy efficiency. Responding to a request from the 2020 Update of the European Strategy for Particle Physics, in 2021 the CERN Council has launched the FCC Feasibility Study to examine the detailed implementation of such a collider. [...]
2022 - 6 p. - Published in : JACoW NAPAC 2022 (2022) 315-320 Fulltext: PDF;
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.TUZD1

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Design Concepts for Medium Voltage DC Networks supplying the Future Circular Collider (FCC) / Colmenero, Manuel (CERN) ; Blanquez, Francisco R (CERN) ; Blasco-Gimenez, Ramon (Valencia U., IFIC)
In the frame of the feasibility studies for the construction of the Future Circular Collider (FCC), a new particle accelerator of 90 km of circumference under design, the use of Medium Voltage DC Grids (MVDC) for distribution has attracted attention considering their potential advantages in terms of transmission losses, power flow control and energy storage integration. Traditionally, the main concerns of the DC networks have been their reliability and robustness. [...]
2022 - 11 p. - Published in : (2022) External link: Fulltext
In : 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe), Hannover, Germany, 5 - 9 Sep 2022

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Degradation of I $_{c}$ due to residual stress in high-performance Nb$_{3}$Sn wires submitted to compressive transverse force / Senatore, C (U. Geneva (main) ; Geneva U.) ; Bagni, T (U. Geneva (main)) ; Ferradas-Troitino, J (U. Geneva (main) ; CERN) ; Bordini, B (CERN) ; Ballarino, A (CERN)
Future particle colliders in search for new physics at the energy frontier require the development of accelerator magnets capable of producing fields well beyond those attainable with Nb-Ti. As the next generation of high-field accelerator magnets is presently planned to be based on Nb$_{3}$Sn, it becomes crucial to establish precisely the mechanical limits at which this brittle and strain sensitive superconductor can operate safely. [...]
2023 - 8 p. - Published in : Supercond. Sci. Technol. 36 (2023) 075001 Fulltext: PDF;

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Construction and Test of the Enhanced Racetrack Model Coil, First CERN R&D; Magnet for the FCC / Perez, J C (CERN) ; Bajko, M (CERN) ; Bourcey, N (CERN) ; Bordini, B (CERN) ; Bottura, L (CERN) ; Troitiño, S Ferradás (CERN) ; Gautheron, E (CERN) ; Guinchard, M (CERN) ; Bermudez, S Izquierdo (CERN) ; Mangearotti, F (CERN) et al.
Racetrack model coils (RMC) have been built at CERN during the past decade, as an R&D; tool to qualify conductors and technologies developed for high field superconducting accelerator magnets (Perez et al. , 2016). RMC, assembled in a dipole magnet configuration, proved to be an efficient instrument reducing cost and feed-back time while developing new magnets. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4005105
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4005105

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High-Temperature Superconductor Application to Undulators for Compact Free-Electron Lasers / Richter, Sebastian
Short-period high-field undulators are essential components for the production of brilliant coherent light up to X-rays in compact light sources, e.g [...]
CERN-THESIS-2023-053 - Karlsruhe : KIT, Karlsruhe. - 177 p.

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Mechanical Design of FalconD, a Nb$_3$Sn Cos$\theta$ Short Model Dipole for the FCC / Pampaloni, A (INFN, Genoa) ; Bellomo, G (Milan U. ; INFN, Milan) ; Burioli, S (INFN, Genoa ; Genoa U.) ; Caiffi, B (INFN, Genoa) ; De Matteis, E (INFN, Milan) ; Fabbricatore, P (INFN, Genoa) ; Farinon, S (INFN, Genoa) ; Felice, H (CERN) ; Lackner, F (CERN) ; Levi, F (INFN, Genoa ; Genoa U.) et al.
The future of the particle accelerators points to a new CERN’s circular collider with an order of magnitude increase in the center-of-mass energy compared to the Large Hadron Collider (LHC). To achieve this increase from 14 TeV to 100 TeV a 100 km tunnel will be required to host the collider. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 1-5

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PBC - Physics Beyond Colliders (75)
Future Circular Collider Documents (187)
IMCC - International Muon Collider Collaboration (1)
NIMMS - Next Ion Medical Machine Study (15)